Wickson, E. J. (1921). The california fruits and how to grow them (Ninth edition.). Pacific Rural.
Citazione stile Chigago Style (17a edizione)Wickson, Edward J.. The California Fruits and How to Grow Them. Ninth edition. San Francisco: Pacific Rural, 1921.
Citatione MLA (9a ed.)Wickson, Edward J.. The California Fruits and How to Grow Them. Ninth edition. Pacific Rural, 1921.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.